EnergyGuard™
Perlite Tapered
Roof Insulation
Data Sheet
Updated: 1/10
Quality You Can Trust Since 1886...
From North America’s Largest Roofing Manufactur
Quality You Can Trust Since 1886...
From North America’s Largest Roofing Manufacturer ™
ENERGYGUARD™
PERLITE TAPERED ROOF
INSULATION (1 of 2)
Description
• EnergyGuard™ Perlite Tapered Insulation is
factory fabricated from EnergyGuard™ Perlite
rigid perlite insulation board.
• Tapered roof insulation systems are supplied
in 2’ x 4’ (0.6 m x 1.2 m) or 4’ x 4’ (1.2 m x
1.2 m) boards, custom cut and tapered to
1/16” (1/2%), 1/8” (1%), 1/4” (2%), and 1/2”
(4%) per foot (5.2, 10.4, 20.8, or 41.6mm/m)
slope depending on the need. Custom sizes
are available.
• Quality EnergyGuard™ Perlite or Polyiso roof
insulation is used as fill insulation to complete
the system.
Uses
• To create positive drainage on new roofs
and reroofs.
• To eliminate trouble spots on roof where
and when ponding is a problem.
• Properly installed, EnergyGuard™ Perlite
roof insulation is suitable for use under
built-up, modified bitumen and some
single ply roofing systems.
• Refer to the application specifications in
the current Membrane Manufacturer’s
Application and Specifications Manual
for proper installation procedures for
EnergyGuard™ Perlite roof insulation.
Advantages
EnergyGuard™
Perlite Roof Insulation
• Environmentally Friendly. The minimum
recycled content is 25% by weight. Complies
with the Environmental Protection Agency
Regulation 40 CFR Part 248, Guideline for
Federal Procurement of Building Insulation
Products Containing Recovered Materials,
as a recycled product approved for use on
any project using federal funds.
Installation Suggestions for
Tapered Systems
Although each tapered system is different, here are some suggested methods
for installing a Tapered Insulation system
efficiently.
1. Verify building dimensions and drain
locations with the Tapered Roof
Insulation Shop Drawing. Discrepancies
should be reported to BMCA prior to
shipment.
2. Verify that the proper number of
truckloads and piece quantities have
been received on the job site.
3. Determine the area to be completed
that day.
4. Measure the distance from the drain
to the perimeter where the shop
drawing indicates full insulation boards.
Verify that the system will meet the
drain piece.
5. Start installing the tapered system
utilizing full boards. Work from the drain
and finish the area where the shop drawing indicates field cutting.
6. When more than one layer of insulation
is utilized, all vertical board joints should
be staggered, preferably by 1/2 board.
7. Cover the insulation with the complete
membrane system the same day.
WARNING: DO NOT EXPOSE TO OPEN
FLAME OR EXCESSIVE HEAT. MAY
SMOLDER IF IGNITED. IF IGNITED,
EXTINGUISH COMPLETELY.
Limitations
• EnergyGuard™ Tapered Perlite roof insulation
is a non-structural, non-load bearing material.
• EnergyGuard™ Tapered Perlite roof insulation
should be stored dry and be protected from
the elements. Once properly loaded at the
job site, remove factory wraps and cover
with a breathable tarp.
• No more insulation should be applied than
can be completely covered with finished
roofing on the same day.
• Do NOT use under fully adhered single ply
systems or with direct torch application of
modified bitumen.
• If torch grade modified bitumen roofing is
to be installed over EnergyGuard™ Perlite,
a fiberglass base sheet MUST be installed.
©2009 GAF Materials Corporation 01/10
56
EnergyGuard™ Tapered Perlite
Insulation Values
Average Thickness
Nominal
Inches
mm
“C” Values*
“R” Values**
1"
25
.36
2.78
1 1/2"
38
.24
4.17
2"
50
.18
5.56
2 1/2"
64
.15
6.67
3”
75
.12
8.33
3 1/2”
89
.105
9.52
4”
102
.09
11.11
* BTU/(hr. ft2. °F)
** (hr. ft2. °F)/BTU
www.gaf.com • 1-800-ROOF-411
ENERGYGUARD™
PERLITE TAPERED ROOF
INSULATION (2 of 2)
Typical EnergyGuard™ Tapered Perlite System
Typical EnergyGuard™ Tapered Perlite Panel Size (NOTE: Measurements in GRAY are in millimeters)
EnergyGuard™ Tapered Roof Insulation Systems (NOTE: Measurements in GRAY are in millimeters)
1/16" Per Foot 1/2%
ECONOLINE
1/2"
3/4"
5/8"
B16
A16
13
16
C16
19
1"
7/8"
1/2"
D16
22
ECONOLINE-PLUS 8
25
13
3/4"
5/8"
1"
7/8"
11/2"
13/8"
11/8" 11/4"
C16
D16
E16
F16
G16
H16
A16 B16
16
19
22
25
29
32
35
38
(mm)
1/8" Per Foot 1%
STANDARD
1"
3/4"
1/2"
B8
A8
13
1
11/4" 1 /2"
19
C8
25
D8
32
38
ECONOLINE
1/4"
1/2"
6
3/4"
A8
SA8
13
1"
B8
19
11/4"
1/4"
C8
25
ECONOLINE-PLUS 8
32
3/4"
1/2"
A8
SA8
6
13
13/4"
1
11/4" 1 /2"
1"
B8
C8
19
25
D8
32
E8
38
2"
F8
44
21/4"
G8
51
57
3/16" Per Foot 1.5%
STANDARD
3/8"
11/8"
3/4"
A3
10
B3
19
29
1/4" Per Foot 2%
STANDARD
1"
1/2"
PA4
13
3/4"
1/4"
A4
PB4
25
ECONOLINE-PLUS 4
ECONOLINE
11/2"
38
6
11/4"
1/4"
B4
19
3/4"
A4
32
6
11/4"
C4
B4
19
1
13/4" 2 /4"
32
D4
44
57
1/2" Per Foot 4%
SADDLE PANEL
11/4"
1/4"
A2
6
32
ECONOLINE
1/4"
11/4"
A2
6
21/4"
B2
32
Note: Other sizes and special laminations
are available on a made-to-order basis.
57
LIMITED WARRANTY: GAF Materials Corp. warrants that, at the time of delivery, the product contained herein shall conform to GAF Materials Corp.
specifications therefor. THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ALL OTHER WARRANTIES, CONDITIONS AND REPRESENTATIONS, WHETHER BY
STATUTE, AT LAW OR IN EQUITY, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. Recommendations made by GAF Materials Corp. are believed to be reliable, but GAF Materials Corp. makes no warranty of results to be obtained.
BUYER’S SOLE AND EXCLUSIVE REMEDY, regardless of the theory on which a claim may be based, including, without limitation, negligence, contract,
breach of warranty, strict product liability or misrepresentation, IS THE REPLACEMENT OF THIS PRODUCT. In NO event shall GAF Materials Corp. be liable for
INCIDENTAL, CONSEQUENTIAL, SPECIAL, INDIRECT, OR OTHER SIMILAR PUNITIVE DAMAGES OF ANY KIND, INCLUDING DAMAGE TO THE INTERIOR
OR EXTERIOR OF ANY BUILDING.
©2009 GAF Materials Corporation 01/10
57
www.gaf.com • 1-800-ROOF-411